1// Copyright 2016 PDFium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7#ifndef CORE_FPDFAPI_PAGE_CPDF_TEXTOBJECT_H_
8#define CORE_FPDFAPI_PAGE_CPDF_TEXTOBJECT_H_
9
10#include <memory>
11#include <vector>
12
13#include "core/fpdfapi/page/cpdf_pageobject.h"
14#include "core/fxcrt/fx_string.h"
15#include "core/fxcrt/fx_system.h"
16
17class CPDF_TextObjectItem {
18 public:
19  CPDF_TextObjectItem();
20  ~CPDF_TextObjectItem();
21
22  uint32_t m_CharCode;
23  CFX_PointF m_Origin;
24};
25
26class CPDF_TextObject : public CPDF_PageObject {
27 public:
28  CPDF_TextObject();
29  ~CPDF_TextObject() override;
30
31  // CPDF_PageObject
32  Type GetType() const override;
33  void Transform(const CFX_Matrix& matrix) override;
34  bool IsText() const override;
35  CPDF_TextObject* AsText() override;
36  const CPDF_TextObject* AsText() const override;
37
38  std::unique_ptr<CPDF_TextObject> Clone() const;
39  int CountItems() const;
40  void GetItemInfo(int index, CPDF_TextObjectItem* pInfo) const;
41  int CountChars() const;
42  void GetCharInfo(int index, uint32_t* charcode, FX_FLOAT* kerning) const;
43  void GetCharInfo(int index, CPDF_TextObjectItem* pInfo) const;
44  FX_FLOAT GetCharWidth(uint32_t charcode) const;
45  CFX_PointF GetPos() const { return m_Pos; }
46  CFX_Matrix GetTextMatrix() const;
47  CPDF_Font* GetFont() const;
48  FX_FLOAT GetFontSize() const;
49
50  void SetText(const CFX_ByteString& text);
51  void SetPosition(FX_FLOAT x, FX_FLOAT y);
52
53  void RecalcPositionData();
54
55 private:
56  friend class CPDF_RenderStatus;
57  friend class CPDF_StreamContentParser;
58  friend class CPDF_TextRenderer;
59  friend class CPDF_PageContentGenerator;
60
61  void SetSegments(const CFX_ByteString* pStrs,
62                   const FX_FLOAT* pKerning,
63                   int nSegs);
64
65  CFX_PointF CalcPositionData(FX_FLOAT horz_scale);
66
67  CFX_PointF m_Pos;
68  std::vector<uint32_t> m_CharCodes;
69  std::vector<FX_FLOAT> m_CharPos;
70};
71
72#endif  // CORE_FPDFAPI_PAGE_CPDF_TEXTOBJECT_H_
73